Shuttle box



W. H. BAHAN Sept. 14, 1937.

SHUTTLE BOX Filed Dec. 30, 1935 2 Sheets-Sheet 1 can WILLIAM H. BHHH N gwuc/wbm Sept. 14, 1937- w, BAHAN 2,093,225

SHUTTLE BOX Filed Dec. soj 19:55 2 Sheets-Sheet 2 WILLIAM H. BAHAN 3mm Win J Patented Sept. 14, 1937 UNITED STATES PATENT OFFICE SHUTTLE BOX William H. Bahan, Greenville, S. 0. Application December 30; 1935, Serial No. 56,772

10 Claims.

This invention relates to a shuttle box construction for looms and is a continuation as to all common subject matter of my co-pending patent application Serial No. 42,914, filed September 30, 1935. More specifically, it relates to a shuttle box equipped with means for frictionally engaging the side of the shuttle with a gradually increasing gripping effect as it is thrown into the box to stop the same and also to prevent any rebound I thereof.

It is, therefore, an object of this invention to provide in a shuttle box for looms means for applying gradually increasing pressure to the sides of the shuttle as it travels into the shuttle box. This means comprises an eccentric mo-unt-' ed in the pivoted binder of the shuttle box having a strap secured thereto for engaging the side of the shuttle as the shuttle travels in the box, said eccentric being so positioned in the back binder that as the shuttle progresses into the shuttle box a corresponding increase in friction will be produced between the strap and the side of the shuttle.

It is a further objectof this'invention to provide a shuttle box construction which has a pivoted binder on one side thereof, said binder having an eccentric resilient cam operated by a suitable frictional belt forengaging the shuttle, and an adjustable means incorporated in the binder for adjusting the relation of said frictional belt member with relation to the pivotal binder to cause the beltto properly engage the side of the shuttle.

It is stilla further object of this invention to provide means for gripping the sides of a shuttle as it is boxed, said means being operated by the stored energy in the moving shuttle, whereby the stored energy is employed for stopping the shuttle.

It is another object of this invention to provide in a shuttle box for looms a movable lining which extends transversely of the path of travel of the picker stick, so that movement of the picker stick as a result of receiving an impact from an incoming shuttle, will cause the picker stick to engage the movable lining and apply a gripping actle.

Some of the objects of the invention having been stated other objects will appear as the description proceeds when taken in connection with the accompanying drawings, inwhich:

Figure l is a plan view of one end of the lay of a loom showing my invention applied thereto;

Figure 2 is a plan view similar to Figure 1 but tion to the sides of the shuttle to stop'the shut-.

showing a shuttle within the lay and the frictional means in operated position; 7

Figure 3 is a rear elevation of the lay of the loom, taken along line 3-3 in Figure 2 Figure 4 is the transverse sectional view, taken along line 44 in Figure 2;

Figure 5 is a sectional detail View, taken along line 5--5 in Figure 3; V

Figure 6 is an isometric view looking of the binder;

Figure '7 is an isometric View through the eccentric and is taken along line 8- -8 in Figure 6;

and V Figure 8 is a sectional detail view on the line 88 of Figure 6. 1

Referring more particularly to the drawings, the numeral l denotes the lay of a loom which has mounted on the upper side thereof a lay cap Illa. The lay cap supports the conventional box front I I, which in turn, has secured to the inner side thereof a strap of leather I2 for engaging the side of shuttle l3 when it is thrown into the shuttle box. The lay cap Illa has a longitudinal slot lllb in the central portion thereof through which projects a picker stick [4' having a picker on the upper end thereof for delivering an impact to'the end of shuttle I 3 to cause the same to be thrown to the other side of the 100m and for stopping the shuttle when it enters the box.

The structure thus far described is conventional in looms but it is thought necessary to make a showing and description of these parts in order to effectively disclose the present invention.

Pivotally secured as at l! is a back binder [8' which has secured to the back side thereof wearing member 2! which is made of any suitable material such as leather and this member is normally engaged by a resilient arm 22, said arm being pivotally secured as 'at23 to bracket 24. In order to hold the free end of arm 22 in engagement With member 2! a torsion spring 25 is provided. This arm and its associated parts are conventional and serve to cause the backrsidewall of the shuttle box to engage the shuttle to produce a certain amount of friction and resiliency.

In order to limit the pivotal movement of binder l8 about pivot point I! a bracket 30 is secured to lay cap Illa,- said bracket having threadably secured in the upper end thereof a bolt 3| having tip 32 on the end thereof. The'tip 32 is held in proper position by means 'of lock nut 33 and this tip serves to limit the outward pivotal movement of binder l8. The tip 32 e'ngages a block or resilient material 34, such as rubber, when the binder I8 is pressed laterally of the'lay a suf-' at one side ficient amount to cause this member 34 to contact the tip 32. Heretofore, when the tension spring 25 has become weak a greater amount of outward rotation has been allowed than should be thereby causing the shuttle [3 to vibrate in the shuttle box. Furthermore, screw 3| insures proper friction being applied to the shuttle to properly and quickly box the same.

Rotatably mounted as at 36 is an eccentric re-- silient cam. 37 which has a covering 38, preferably made of leather, fixed thereon. The central portion of the cam comprises segments 31a and 3117, the segment 33b being preferably made of rubber in order to produce the desired resilient gripping effect, when the same is rotated to engage the shuttle I3. A movable lining 39 is se- J cured intermediate its ends to the eccentric cam 3? as at 49 and secured to one end thereof is a tension spring 4|, the other end of said tension spring being secured to the binder in. This movable lining 39 extends through an opening.

or recess 52 cut in binder l8 and forms a lining for the shuttle box, which lining cooperates with lining Mon thesame side of the shuttle box.

.The movable lining 39 maybe of leather or suitable textile material or a vulcanized textile material. It may be made of. any material giving proper strength and friction. The lining 44 is secured .to the leaf spring 43 which spring is an integral part of the inner portion of the binder l8. a

The other erfii of lining 39 extends to the right (Figs. 1 and 2) across the slot 19b in the lay, and. has the other end thereof secured as at 15 to bracket 46, this bracket being secured to the 50. It is seen that this screw 48 may be turned and set in position which will also regulate the position of the spring 46 to cause the position of lining 39 to be changed. Likewise, spring 43 is adjusted by means of a'suitable screw 55 threadably mounted in web 56 and having a nut 51 on theend thereof'for holding the screw in the proper position. The tip end of this screw contacts the free end of spring 44 and holds this spring and its associated lining 44 in the proper position so that it will offer the proper frictional resistance to the shuttle when it travels into the box.

By having leaf springs 43 and 46 integral with the back binder I8 it is possible to obtain very minute adjustments as to the friction offered by the binder I8 to the shuttle and as a result it has been found from actual tests that the speed of the loom can be greatly increased when this adjustment is properly made, above the normal speed of the average loom using the conventional back binder.

Also, by providing these two adjustable springs 43 and 46 it is possible to takerup any minute be varied at both ends of the back binder and thereby make it possible to use the lining until the same has practically worn out.

When the shuttle I3, as a result of the impact delivered by the picker stick at the other end of the lay, is driven to the position shown in Figure 2, or slightly prior to its attaining this position, the part thereof adjacent the movable lining 39 is caused to engage the lining. The

friction produced between the lining and the side of the shuttle will cause the eccentric '31 V This frictionto rotate about its pivot point 36. a1 action takes place before the picker stick or picker engages the strap 39 at the extreme righthand end of Figure 2, however, when the picker l engages the strap 39, the tendency to rotate the eccentric 31 will be considerably increased tocause more friction to be applied to the side of the shuttle to pinch the same to stop the shuttle. It is evident that after the picker l5 engages the end of shuttle l3'and throws it from the shuttle box that the spring 4 I will return the eccentric'3l and its associated parts back to a normal position as shown in Figure 1.

In the drawings and specification therehas been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a generic and descriptive sense onlyfand not for purposes of limitation,

the scope of the invention being set forth in the appended claims.

I claim:

1; In a shuttle box for looms having a box front, a picker stick, a picker disposedon the upper end of the picker stick, a binder pivoted at its outer end to the lay-of the loom, tension means normally resisting outward swinging movement of the free end of the binder, an additional means for'limiting outward swinging movement of the free end of the binder, a pair of movable sidewall portions in said binder spaced from each other to form an opening extending transversely of the binder, means for adjusting the positions of said sidewalls with relation to the binder, a fixed lining on one sidewall portion, one end of the movable lining extending through said opening, an eccentric on which the said one end is secured and havingtension means connected thereto for holding the lining in a given position, the other end of the movablelining extending across the path of the picker and secured to the lay of the loom so that movement of the shuttle as it is boxed will move the eccentric to exert pressure on the shutwith movable sidewall portions, means for adjusting the position of the sidewall portions, a fixed lining on'one sidewall portion, a movable lining covering the other sidewall portion, said sidewall portions having their proximate ends spaced from each other providingarecess, an

eccentric member mounted for oscillation in said recess and to which one end of the movable lining is secured, the other end of the movable lining passing across the path travelled by the picker whereby the picker when moved by an incoming shuttle, will cause the eccentric to exert pressure on the shuttle to stop the same.

3. ma loom having a lay provided with a shuttle box at each end thereof, a picker and picker stick mounted for travel back and forth in each box, said box comprising a box front having a fixed lining secured thereto, a binder having its outer end pivotally secured to the lay,

tension means normally pressing the free end of the binder into engagement with the sidewall of an incoming shuttle, means limiting the outward travel of the free end. of the binder, a pair of movable members forming the sidewall of the binder which is next to the shuttle, means for adjusting the position of said sidewalls with relation to the binder, a covering fixed to one of the movable members, said binder having a recess between the two members, an eccentric mounted for oscillation in said recess, a movable lining covering the other movable member and having one end secured to said eccentric, the other end of the movable lining extending outwardly and across the path travelled by the picker and picker stick, whereby travel of the picker and picker stick under the impact of an incoming shuttle will move the eccentric member to exert ever increasing pressure on the shuttle to arrest the same.

4. In a loom having a lay provided with a shuttle box at each end thereof, a picker and picker stick mounted for travel back and forth in each box, said box comprising a box front having a fixed lining secured thereto, a binder having its outer end pivotally secured to the lay, tension means normally pressing the free end of the binder into engagement with the sidewall of an incoming shuttle, means limiting the outward travel of the free end of'the binder, a pair of movable members forming the sidewall of the binder which is next to the shuttle, means for adjusting the position of said sidewalls with relation to the binder, a covering fixed to one of the movable members, said binder having a recess between the two members, an eccentric mounted for oscillation in said recess, a movable lining covering the other movable member and having one end secured to said eccentric, the other end of the movable lining extending outwardly and across the path travelled by the picker and picker stick, whereby travel of the picker and picker stick under the impact of an incoming shuttle will move the eccentric member to exert ever increasing pressure on the shuttle l to arrest the same, and means for returning the eccentric and movable lining to normal position when the shuttle is expelled from the box.

5. A binder for the shuttle box for a loom having its face disposed next to the shuttle in two spaced sections and adjustable with relation to the other portions of the binder and having 7 a recess disposed between the two spaced sections, an eccentric member mounted in said recess, a movable lining for one of said sections having one of its ends secured to said eccentric and extending along its associated section and to the other side of the shuttle box whereby the travel of the shuttle into the box will move the movable lining and the eccentric to cause the eccentric to exert pressure on the side of the shuttle.

6. In a shuttle box for looms having a box front, a binder, a picker and a picker stick supporting the picker for reciprocation between the binder and the box front for receiving and throwing a shuttle, said binder being pivoted at one of its ends and having resilient means normally urging the free end towards the box front to exert a wedging action on the shuttle, said binder having a sidewall in two sections between the ends of which there is formed a recess, means for adjusting the position of the sidewalls with relation to the binder, a lining fixed to one section of the sidewall, an eccentric member mounted in said recess, a movable lining having one end securedto the eccentric member and forming a lining for the other section of the sidewall and having its other end projecting across the path travelled by the picker and picker stick and being secured to the side of the shuttle box having a box front thereon, whereby movement of the picker stick by the impact of an incoming shuttle will move the eccentric member into engagement with the side of the shuttle to apply pressure thereto to stop the same.

7. In a shuttle box for looms having a box front, a picker stick, a picker disposed on the upper end of the picker stick, a binder pivoted at its outer end to thelay of the loom, tension means normally resisting outward swinging movement of the free end of the binder, an additional means for limiting outward swinging movement of the free end of the binder, a pair of movable sidewall portions in said binder spaced from each other to form an opening extending transversely of the binder, a fixed lining on one sidewall portion, a movable lining extending through said opening and along the other sidewall portion, an eccentric mounted for rotation in said opening on which one end of said movable lining is secured and having tension means connected thereto for holding the lining in a given position, the other end of the movable lining extending across the path of the picker and secured to the lay of the loom so that movement of the shuttle as it is boxed will move the eccentricto exert pressure on the shuttle to arrest the same.

8. In a loom having a lay, a box front, a picker and picker stick for arresting a shuttle received into the box, a pivoted binder provided with movable sidewall portions, a fixed lining on one sidewall portion, a movable lining covering the other sidewall, portion, said sidewall portions having their proximate ends spaced from each other providing a recess, an eccentric member mounted for oscillation in said recess and to which one end of the movable lining is secured, the other end of the movable lining passing across the path travelled by the picker whereby the picker when moved by an incoming shuttle, will cause the eccentric to exert pressure on the shuttle to stop the same.

9. In a loom having a lay provided with a shuttle box at each end thereof, a picker and picker stick mounted for travel back and forth 7 of movable members forming the sidewall of the binder which is next to the shuttle, a covering fixed to one of the movable members, said binder having a recess between the two members, an

eccentric mounted for oscillation in said recess, a movable lining covering the other movable member and having one end secured to said eccentric, the other end of the movable lining extending outwardly and across the path travelled by the picker and picker stick, whereby travel of the picker andpicker stick under the impact of an incoming shuttle will move the eccentric member to exert ever increasing pressure on the shuttle to arrest the same.

10. Ina loom having a lay provided with a in each box, said box comprising a box front having a fixed lining secured thereto, a binder having its outer end pivotally secured to the lay,

tension means normally pressing the free end of the binder into engagement with the sidewall of an incoming shuttle, means limiting the outward travel of the free end of the binder, a pair of movable members forming the sidewall of the binder which is next to the shuttle, a covering fixed to one of the movable members, said binder having a recess between the two members, an eccentric mounted for oscillation in said recess,

a movable lining covering the other movable member and having one end secured to said eccentric, the other end of the movable lining extending outwardly and across the path travelled by the picker and picker stick, whereby travel of the picker and picker stick under the impact of an incoming shuttle will move the eccentric member to exert ever increasing pressure on the shuttle to arrest the same, and meansrfor returning the eccentric and movable lining to, normal position when the shuttle is expelled from the box.

WILLIAM H. BAHAN. 

